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SSM2604CPZ-R2 Folha de dados(PDF) 15 Page - Analog Devices |
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SSM2604CPZ-R2 Folha de dados(HTML) 15 Page - Analog Devices |
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15 / 28 page ![]() SSM2604 Rev. 0 | Page 15 of 28 SOFTWARE CONTROL INTERFACE The software control interface provides access to the user- selectable control registers and can operate with a 2-wire (I2C®) interface. Within each control register is a control data-word consisting of 16 bits, MSB first. Bit D15 to Bit D9 are the register map address, and Bit D8 to Bit D0 are register data for the associated register map. SDIN generates the serial control data-word; SCLK clocks the serial data, The device address for the SSM2604 is 0011010. P 9 8 1 TO 7 9 8 1 TO 7 9 8 1 TO 7 S SDIN SCLK START ADDR R/W ACK ACK SUBADDRESS ACK STOP DATA Figure 24. 2-Wire I2C Generalized Clocking Diagram WRITE SEQUENCE READ SEQUENCE SA1 A7 A0 A(S) A(S) S D15 D9 0 01 0P 0 ... A1 A7 A0 A(S) ... D0 D8 D7 A(M) A(M) ... D0 D7 P ... ... ... DEVICE ADDRESS DEVICE ADDRESS REGISTER ADDRESS SA1 A7 A0 A(S) A(S) A(S) D15 D9 D8 0 ... ... DEVICE ADDRESS REGISTER ADDRESS REGISTER DATA (SLAVE DRIVE) REGISTER DATA S/P = START/STOP BIT. A0 = I2C R/W BIT. A(S) = ACKNOWLEDGE BY SLAVE. A(M) = ACKNOWLEDGE BY MASTER. A(M) = ACKNOWLEDGE BY MASTER (INVERSION). Figure 25. I2C Write and Read Sequences |
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